Salt marshes also protect shorelines from erosion by buffering wave action and trapping sediments. They also provide essential food, refuge, or nursery habitat for more than 75 percent of fisheries species, including shrimp, blue crab, and many finfish. These intertidal habitats are essential for healthy fisheries, coastlines, and communities-and they are an integral part of our economy and culture. Approximately half of the nation's salt marshes are located along the Gulf Coast. In the U.S., salt marshes can be found on every coast. The hypocenter is located 15 km from the left edge of the fault, at a depth of 7.5 km. There is a circular nucleation zone on the fault surface. Three sides of the are complete, but the. Thriving along protected shorelines, they are a common habitat in estuaries. Rupture is allowed within a rectangular area measuring 30000 m along-strike and 15000 m down-dip. 10.4 to show the strike and dip of the fault On the cross-section along the west edge of the block, draw arrows parallel Question: Cardboard Model 6 This model shows a fault that strikes due west and dips 45' to the north. Salt marshes occur worldwide, particularly in middle to high latitudes.
Hypoxia is caused by the growth of bacteria which produce the sulfurous rotten-egg smell that is often associated with marshes and mud flats. Because salt marshes are frequently submerged by the tides and contain a lot of decomposing plant material, oxygen levels in the peat can be extremely low-a condition called hypoxia. Peat is waterlogged, root-filled, and very spongy. Peat is made of decomposing plant matter that is often several feet thick. They are marshy because the soil may be composed of deep mud and peat. Salt marshes are coastal wetlands that are flooded and drained by salt water brought in by the tides.
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